PL-900 Demonstrate the capabilities of Power Apps Practice Question
Exhibit
Refer to the exhibit. Gallery1.Items: Filter(Accounts, StartsWith(Title, TextSearchBox1.Text))
Refer to the exhibit. A canvas app has a gallery (Gallery1) with the Items property shown. The app also has a text input (TextSearchBox1) for searching accounts. Users report that when they type a search term, the gallery does not update until they click a button. What is the most likely cause?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The gallery's Items property is set to a static value instead of using TextSearchBox1.Text
The gallery's Items property is set to a static value instead of using TextSearchBox1.Text. In canvas apps, the Items property of a gallery must dynamically reference the text input's Text property to update as the user types. If it's set to a static collection or a value that doesn't change, the gallery won't reflect search input until it's manually refreshed (e.g., by a button). Option D directly addresses this issue.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The data source is not delegable, causing the filter to fail
Why it's wrong here
Delegation affects performance, not reactivity
- ✗
The text input's OnChange event is not set to refresh the gallery
Why it's wrong here
The filter should automatically update as text changes without needing OnChange
- ✗
The gallery's DelayOutput property on the text input is set to true
Why it's wrong here
DelayOutput delays update but still updates eventually; not the cause of no update
- ✓
The gallery's Items property is set to a static value instead of using TextSearchBox1.Text
Why this is correct
If the Items property is not dynamic, it won't respond to text changes
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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